1108_chap17

1108_chap17 - ME240 Agenda: 17.6SlidingContacts...

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ME 240 Agenda: 17.6 Sliding Contacts 7 7 Moving Reference Frames 17.7 Moving Reference Frames Problems HW: 17.110, 17.115 Supplemental: 17.113 , 17.119
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General Motion Summary velocity: ecall for points on acceleration: Recall, for points on a single rigid body: v r   / 2 // AB A B A B A B vv aa r r    Use to solve problems in which two rigid members share a point ( e.g. pivoting and rolling contacts ): However, it is not applicable for problems with sliding contact
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Rotating Reference Frames otating reference frames Rotating reference frames (an example): Some problems are easier to solve using additional reference frames Sometimes interested in motion in reference frame attached to oving body moving body Analysis used for points on a rigid body can NOT be used
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Moving Reference Frame Analysis: Velocity Introduce a moving reference frame (x y), called a body fixed or rotating reference frame Secondary (rotating) reference frame Primary reference frame
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1108_chap17 - ME240 Agenda: 17.6SlidingContacts...

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